SQL Server

Duplicate OpensSSL Command that Decrypts Binary DER

See more OpenSSL Examples

This example duplicates the following:

openssl smime -decrypt -in INPUT_FILE -inform der -binary -out OUTPUT_FILE -recip PEM_CERT_AND_KEY -passin pass:PRIVKEY_PASSWORD

Note: Although "smime" is the OpenSSL command, we're not really dealing with S/MIME. The arguments "-inform der -binary" indicate that the input is simply the binary DER (i.e. the PKCS7 binary encrypted object). The output can be any type of file (whatever was encrypted).

SQL Server

-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    -- Important: Do not use nvarchar(max).  See the warning about using nvarchar(max).
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @success int
    SELECT @success = 0

    -- This example requires the Chilkat API to have been previously unlocked.
    -- See Global Unlock Sample for sample code.

    DECLARE @crypt int
    EXEC @hr = sp_OACreate 'Chilkat.Crypt2', @crypt OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    EXEC sp_OASetProperty @crypt, 'CryptAlgorithm', 'pki'

    DECLARE @pem int
    EXEC @hr = sp_OACreate 'Chilkat.Pem', @pem OUT

    EXEC sp_OAMethod @pem, 'LoadPemFile', @success OUT, 'qa_data/pem/myPem.pem', 'password'
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @pem, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @crypt
        EXEC @hr = sp_OADestroy @pem
        RETURN
      END

    DECLARE @privkey int
    EXEC @hr = sp_OACreate 'Chilkat.PrivateKey', @privkey OUT

    EXEC sp_OAMethod @pem, 'PrivateKeyAt', @success OUT, 0, @privkey
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @pem, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @crypt
        EXEC @hr = sp_OADestroy @pem
        EXEC @hr = sp_OADestroy @privkey
        RETURN
      END

    DECLARE @cert int
    EXEC @hr = sp_OACreate 'Chilkat.Cert', @cert OUT

    EXEC sp_OAMethod @pem, 'CertAt', @success OUT, 0, @cert
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @pem, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @crypt
        EXEC @hr = sp_OADestroy @pem
        EXEC @hr = sp_OADestroy @privkey
        EXEC @hr = sp_OADestroy @cert
        RETURN
      END

    EXEC sp_OAMethod @crypt, 'SetDecryptCert2', @success OUT, @cert, @privkey
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @crypt, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @crypt
        EXEC @hr = sp_OADestroy @pem
        EXEC @hr = sp_OADestroy @privkey
        EXEC @hr = sp_OADestroy @cert
        RETURN
      END

    EXEC sp_OAMethod @crypt, 'CkDecryptFile', @success OUT, 'qa_data/infile.enc', 'qa_output/outfile.dat'
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @crypt, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @crypt
        EXEC @hr = sp_OADestroy @pem
        EXEC @hr = sp_OADestroy @privkey
        EXEC @hr = sp_OADestroy @cert
        RETURN
      END


    PRINT 'Success.'

    EXEC @hr = sp_OADestroy @crypt
    EXEC @hr = sp_OADestroy @pem
    EXEC @hr = sp_OADestroy @privkey
    EXEC @hr = sp_OADestroy @cert


END
GO